Odourless, white, cubic crystals.Hygroscopic.Characteristic salty taste.Melting point = 800.8 °C.Boiling point = 1465 °C.Density = 2.165 g/cm³Solubility at 25 °C = 35.9 g/100 g water.Vapour pressure at 865 °C = 1 mm Hg.
The structure of 1-methoxypropane is CH₃-CH₂-CH₂-OCH₃
I will label the carbons A-D from left to right.
A B C D
CH₃-CH₂-CH₂-OCH₃
In a proton NMR spectrum, we are looking at the chemical shifts of each unique hydrogen atom, and the splitting patterns tell us how many hydrogens are attached to the adjacent carbon. Therefore, the signal from the protons on carbon A will be split by the protons on carbon B, and the signal for protons on carbon A will have a splitting pattern equal to n+1, where n = number of hydrogens on the adjacent carbon.
Therefore, for the protons on carbon A, there are two neighbouring protons and these will give a splitting patter of 3 peaks, also known as a triplet.
Protons on carbon A: 2 adjacent protons result in a triplet signal.
Protons on carbon B: 5 adjacent protons result in a sextet signal.
Protons on carbon C: 2 adjacent protons result in a triplet signal.
Protons on carbon D: 0 adjacent protons result in a singlet signal.
A car traveling at
20 m/s starts to decelerate steadily it comes to a complete stop in 10s. The
equation for the acceleration is velocity divided by time. So divide 20 m/s by
10 s and you will get an acceleration of 2 m/s2.
<span>If a psychoactive substance is used or abused over a long period of time, a person may be unable to function properly without it. An abuser can suffer extreme withdrawals.</span>
Answer:
The hypothetical van't Hoff factor of magnesium nitrate,
is <u>3 .</u>
Explanation:
Lets calculate -
We know that ,
Dissociation should be 100% for the hypothetical vant hoff factor , that is
and 
for
Therefore , putting the given values ,
<u>Hence , the answer is 3.</u>
